Continuous Safari error connecting to select servers

For about a month (potentially longer, my memory isn't the best) I've had issues with Safari connecting to the server of a social networking site (tumblr)--however it's only every couple of pages and I get the typical white error message page. If I wait a few minutes (and sometimes longer or shorter) and refresh the page, it will connect. However it's not just a problem in Safari--the problem also occurs in Chrome (however the error message will say it "cannot connect to network").

I've reset Safari, changed DNS multiple times (currently set to the two DNS available in the second link), restarted the computer, etc, but nothing seems to help. The problem original came to my attention while I was at home over the winter holidays, but now I'm back at univeristy and the problem is continuing, disproving my hypothesis it might have been just a problem at my home. Any suggestions? I have VirusBarrier X6 installed that has some IP addresses blocked that were deemed troublesome--do you think if I unblocked them the problem would cease? I believe the VirusBarrier has been installed since roughly the time this problem started occuring... (Or is an update to Mountain Lion required?)

I've very eager to get this problem fixed, as running in safe mode all the time is not at all ideal nor would it make any sense. (I'm /very/ much a novice when it comes to computer related issues, so if there is something obviously wrong or something I obviously missed, please point it out.)

(I've had my MacbookPro 13" for about five months with no problems before that point.)

Turns out immediately after I posted, I went into VirusBarrier and found out that one of the IPs that was being blocked was specifically from the website I was trying to access--guess I just needed to type out my problem to brainstorm and work from there. Thank you for your comment (it confirmed that VirusBarrier seemed to be the problem)!

More Like This

Retrieving data ...

This site contains user submitted content, comments and opinions and is for informational purposes only.
Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.
All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.